Draft attachment for doubletrees.



mum- Apr 22, I902.

I J. nABus. DRAFT ATTACHMENT FOB DOUBLETREES.

'Applicatiun filed Aug. 20, 1901.)

(No Model.)

- l 6. ||\V////// ///////////////41m Ill/mm |l V/////// WITNESSES VEN TOR.

A TTORNEY. T

UNITED STATES PATENT OFFICE.

JOHN DABUS, OF PIQUA, OHIO.

DRAFT ATTACHMENT FdR D O UBLETREES.

SPECIFICATION forming part of Letters Patent No. 698,178, dated April 22, 1902.

. Applicationiiled August 20, 1901. Serial No. 72,637. (1% model.) I l To all whom it may concern:

. Be it known that I, JOHN D BUs, a citizen ,of the United States, residing at Piqua, in the county of Miami and State of ,Ohio, have invented certain new and useful Improvements in DraftAttachments for Doubletrees; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to a draft attachment more especially designed and adapted for the purpose of connecting the siugletrees to the doubletree.

The main object or purpose of thisinvention is in providing ajdevice of simple con struction and inexpensive cost of manufac-. tureand one which will effectively relieve and prevent any sudden jar or strain from coming on the horses, especially their shoul .ders, caused by the wheels of the wagon or any part of the vehicle'or' agricultural'imple-j ment striking an obstruction suddenlyor in I startingquickly with an uneven draft, which f with my attachment will be readily'equalized:

and regiilated. 1 g V p,

Myinvention consists of certain noveland peculiarfeatures of construction and combi- 1 nation and arrangement of theseveral parts,

Q as will be more fully described hereinafter and particularly set forth in the subjoined claims, all in accordance' with the" statutesin such cases made and provided therefor. I

In the annexed drawings,forming apart of this specification, and wherein like letters of reference indicate the same parts wherever they occur throughout theseveral views, Fig; ure 1 is a plan viewofa poleha-ving the den bletree and singletrees properly connected means of mydraft attachment, so as to show the practical application ofthesame. Fig.

2 is a longitudinalhorizontal sectional view through one of the'e'ntire attachments, showing the spring partially in section and'the draw-bar in solid lines and the several parts.

all in their proper position 3' net before the device is attached to the end of the doubletree and connected to the singletre'e. Fig. 3 is anend view of the device as shown in Fig. 2,

only on "a slightly-reduced scale. Fig. 4=is a detail view in perspective of a portion of the front side of the frame broken away, so as to show the flanges which hold the front of the r f spring in position; also, the long slot located between said flanges which receive the draw-,

bar. and permits ofits lateral movement. Fig.

5 is a group of 'detailviews in perspective showingv ,both sidesof: the circular. bearingplate or washer and the retaining-pin, which, passes through the draw-bar and rests in the I recesses in said plate or Washer, and Fig, 6 is a perspective view of'the drawebarp 'In describing myimproveddra ft attachment for doublet'rees and. referring to the different parts thereof in.detai1,"as shown throughout the-drawings by neans' of the letters of reference asiaforesaid, a refers to' the sides of the fram'eyhichextend inwardly p W a suflicient-distance toform the irons I (seev Figs. 1 and 2) and whiclrfit or bear. against each edge of the ends of the doubletree and are connected or'fastened thereto, preferably by bolts,fwhich pass through the eyes band 4 thedoubletree ends in the usualma'n'ner Said vframeis formed at its outeren'd in an apartment 0, in jwhichl rests the coil spring d constructedof suitable. material-,soas to f havethe proper power of/resiliency, the fora,

ward or frontend of said. spring being supported in position by twoflanges or'lugs e; (see Figs. 2 ."and 4,);which project from thefront side portion a of the frameinto apartment 0 and iit inside said spring, while the washerf, formed with a raised portion or colrear end of said spring.

rear end ofsaidjspringlrests:and impinges", V firmly against a circular bearing-plate or a .90 {la'r g,adaptedto fitl inside ofand support the a Slot 1 loca-ted in 1' thefront side portion aof theframe between" t' in said circular bearing-plate orwasher, and

the horses not pullingeven or, in other words, any uneven draft is'thus' equalized. An'eye draw-bar Z, by which it is linked or connected to the singletree, (see Fig. 1,) which is pro:

or ring m is formed at the forward end of the vided with shoulders or bearings a (see Fig. 6) for holding it against the side portion of the frame. Circular bearing-plate or washer fis also provided with a cavity or recess 0, suitably formed for the reception of a short pin 1), which passes through small opening '1' in said draw-bar, and thus retains it in position. It will be noted that the rear end of the draw-bar Z is extended sufliciently long so as to project beyond the frame when in normal condition, as shown in Figs. 2 and 3, for the purpose that when said spring is compressed by reason of the draft this end will always be proportionately long enough to rest in the frame and support said spring and prevent it from sagging or dropping out of the frame, and it will be further noted that said bar is considerably wider around small opening 1' for the purpose of not alone strengthening the bar at this point, but also to facilitate any lateral play of the bar in slot 2' of the washer, which is accordingly made on a slight incline, as shown in Fig. 2. An eye or ring 3 projects from the rear side portion or iron a, to which the stay chain or strap is connected or attached.

As shown in Fig. 3, it will be observed that the front side portion a of the frame just in line with apartment 0 ismade much wider or higher at this point than the rearside portion just opposite. This is done for the purpose of accommodating the flanges e and leave sufficient bearing-surface for the spring.

I am well aware that springs have been employed in various forms for draft attachments, and I therefore do not claim the use of a spring broadly; but

What I do claim is- 1. In animproveddraftattachmentforcon meeting the singletrees to the doubletree, the frame having an open apartment provided with flanges, and formed at its forward and rear ends with aslot; the draw-bar provided with an eye or ring, and formed with the bearing-shoulders the-coil-spring adapted to rest around said draw-bar, andin said open apartment; the circular bearing-plate or washer, formed with a raised portion or collar adapted to fit inside of and support said spring, and also formedwith a cavity or recess; and a retaining-pin; all substantially as and for the purpose described.

2. The combination in an improved draft attachment for connecting the singletrees to the doubletree of the rectangular frame having straps for ironing the ends of the doubletree, the rear one being provided with the stay-chain eye, an open apartment formed by said frame and provided with flanges and formed at its forward and rear ends with a slot, the forward slot being much larger than rear slot, so as to permit of anylateral play; the draw-bar adapted to rest in the slots in said frame, and formed with the eye or ring having shoulders adapted to bear against said frame, also the swelled portion provided with a pin-opening; the coil-spring adapted to bear against said flanges and rest around said draw-bar in said open apartment; the circular bearing-plate or washer having the inclined slot for the draw-bar, and formed with the raised portion or collar adapted to fit in said spring, and also provided with a cavity or recess; and the retaining-pin adapted to pass through the opening in said draw-bar and restin said cavity or recess in said collar; all substantially as and for the purpose described.

In testimony whereof I have affixed my signature in presence of. two Witnesses.

JOHN DABUS.

Witnesses:

ELLA RICHARDSON, ALLEN C. MCDONALD. 

